
.mainview {
  position:absolute;
  background: url("galeria/fondo.png");
  border: 6px solid black;
  border-radius: 19px;
  color: white;
  padding: 10px;
  width:400px;
  height:400px;
  width: 400px;
  height: 400px;
  left: 50%;
  margin: 0 0 0 -200px;
  top: 40px;
  }

.mainview .imagen{
  width:400px;
  height:400px;
  margin:0 auto;
  }